I’m going to repurpose my S21 since I just got a new phone that could be rooted and have the boot loader unlocked. However, I’ve told that the U.S variant of the S21 (Snapdragon 888) can’t be rooted and have the boot loader unlocked. Is this true and I’m simply chasing a pipedream? Or can it actually be done?
If I recall, the US S21 Ultra can b e bootloader unlocked via a service on Telegram but only on a specific Android version. After that version, you are out of luck.
Can it be downgraded to that specific version?
As far as I know, no.